I've never used a USB drive to do this, it might be possible, but I can't recommend. C support ecpe book 2 hellenic american union FSB1333 CPUs. Hello, I have a 2 years old Asus P5GC-MX/1333 Board with oldest version of bios on it(0312). I had to use a floppy disk to update the BIOS since the BIOS update utility was not working for me. If you really want 1.0.20.22, I can replace it, but the only way to get it to fit is by removing some old microcodes.... The latest one is 1.0.20.22, but I couldn't replace it, because Asus used some sort of shrunken down version for this BIOS, and there isn't enough room for the stock OROM from Atheros. What a slavery that is - to confuse slavery for light, and bitter darkness for bright light. Their plight, in fact is even worse, they don't realize that they're cantonists, they think they're free men.